{"id":"vidhyamitra:city-day:howrah:2011-02-18:en","page_class":"VM-CD-city-day","url":"https://vidhyamitra.com/city/howrah/2011-02-18","language":{"target_lang":"en","base_lang":"en","quality_tier":"canonical"},"data":{"date":"2011-02-18","date_display":"February 18, 2011 CE","panchanga":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2011,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455610.770833,"kali_year":5112,"ahargana":1867145.2708,"sun":{"sidereal_longitude":305.0994,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":119.7975,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.698,"elapsed_within_tithi_degrees":6.698},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":119.7975,"elapsed_within_degrees":13.1308},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.8969},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"sky":{"method":"Sūrya-Siddhāntic Bhāskara-II 4-step iteration with atan2-based śīghra + varying peripheries + lunar latitude","engine_version":"3.0 (Pūrṇa — complete SS implementation)","tradition_sources":"Āryabhaṭīya 499 CE → SS Ch.1-5 Burgess 1860 → Siddhānta-Śiromaṇi Bhāskara II 1150 → Tantrasaṅgraha Nīlakaṇṭha 1501","input":{"year":2011,"month":2,"day":18,"hour":6,"minute":30,"calendar":"gregorian"},"julian_day":2455610.770833,"ahargana":1867145.2708,"kali_year":5112,"ayanamsa_lahiri":24.0085,"grahas":{"sun":{"sidereal_longitude":305.013868,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":4},"retrograde":false},"moon":{"sidereal_longitude":120.619868,"rashi":{"number":5,"name":"Siṃha"},"nakshatra":{"number":10,"name":"Maghā","pada":1},"retrograde":false,"latitude":-3.4528},"mars":{"sidereal_longitude":301.889768,"rashi":{"number":11,"name":"Kumbha"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":3},"retrograde":false},"mercury":{"sidereal_longitude":299.074568,"rashi":{"number":10,"name":"Makara"},"nakshatra":{"number":23,"name":"Dhaniṣṭhā","pada":2},"retrograde":false},"jupiter":{"sidereal_longitude":341.321768,"rashi":{"number":12,"name":"Mīna"},"nakshatra":{"number":26,"name":"Uttara Bhādrapadā","pada":3},"retrograde":false},"venus":{"sidereal_longitude":261.65756799999997,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":20,"name":"Pūrva Āṣāḍhā","pada":3},"retrograde":false},"saturn":{"sidereal_longitude":172.52126799999996,"rashi":{"number":6,"name":"Kanyā"},"nakshatra":{"number":13,"name":"Hasta","pada":4},"retrograde":true},"rahu":{"sidereal_longitude":249.6582,"rashi":{"number":9,"name":"Dhanu"},"nakshatra":{"number":19,"name":"Mūla","pada":3},"retrograde":false},"ketu":{"sidereal_longitude":69.6582,"rashi":{"number":3,"name":"Mithuna"},"nakshatra":{"number":6,"name":"Ārdrā","pada":1},"retrograde":false}},"panchang":{"method":"Sūrya Siddhānta + Bhāskara-II iterative manda + Kerala-school (Mādhava-Nīlakaṇṭha) evection + variation + annual equation","engine_version":"2.0 (Kerala-school enhanced)","accuracy_note":"Sub-degree on Moon at any Kali-Yuga date (~2-5° residual max)","tradition_chain":"Āryabhaṭa(499) → Brahmagupta(628) → Bhāskara II(1150) → Mādhava(~1400) → Parameśvara(1430) → Nīlakaṇṭha(1501) → this","input":{"year":2011,"month":2,"day":18,"hour":6,"minute":30,"second":0,"calendar":"gregorian"},"julian_day":2455610.770833,"kali_year":5112,"ahargana":1867145.2708,"sun":{"sidereal_longitude":305.0994,"rashi":11,"rashi_name":"Kumbha"},"moon":{"sidereal_longitude":119.7975,"rashi":4,"rashi_name":"Karka"},"tithi":{"number":15,"name":"Pūrṇimā","paksha":"Śukla","full_name":"Śukla Pūrṇimā","elongation_degrees":174.698,"elapsed_within_tithi_degrees":6.698},"nakshatra":{"number":9,"name":"Āśleṣā","pada":4,"moon_longitude":119.7975,"elapsed_within_degrees":13.1308},"yoga":{"number":5,"name":"Śobhana","sum_longitude":64.8969},"karana":{"half_tithi_index":29,"name":"Bava"},"vara":{"number":0,"name":"Śukravāra (Friday)"}},"eclipse_current":{"solar":{"type":"solar","occurs":false,"moon_latitude":-3.453,"elongation":174.698},"lunar":{"type":"lunar","occurs":false,"moon_latitude":-3.453,"opposition_distance":5.302}},"eclipse_window_40days":[]},"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"tier2":{"city":{"slug":"howrah","name":"Howrah, West Bengal","lat":22.5958,"lon":88.2636,"tz_offset_hours":5.5,"state":"West Bengal","country":"IN","tier":"tier-1"},"sunriseLocal":"06:08","sunsetLocal":"17:35","solarNoonLocal":"11:51","dayLengthHours":11.457506790862382,"dayLengthDisplay":"11 Hours 27 Mins 27 Secs","nightLengthDisplay":"12 Hours 32 Mins 33 Secs","moonriseLocal":"17:09","moonsetLocal":"05:59","rahuKala":{"name":"Rāhu Kāla","start":"10:25","end":"11:51","startHours":10.424152921348874,"endHours":11.85634127020667,"quality":"inauspicious"},"yamaganda":{"name":"Yamaganda","start":"14:43","end":"16:09","startHours":14.720717967922266,"endHours":16.152906316780065,"quality":"inauspicious"},"gulika":{"name":"Gulika Kāla","start":"07:34","end":"09:00","startHours":7.5597762236332775,"endHours":8.991964572491074,"quality":"inauspicious"},"durMuhurta":[{"name":"Dur Muhūrta","start":"08:48","end":"09:11","startHours":8.801006125976702,"endHours":9.182923019005448,"quality":"avoid"}],"varjyam":{"name":"Varjyam","start":"06:36","end":"06:55","startHours":6.604983991061412,"endHours":6.9105175054844095,"quality":"avoid"},"abhijit":{"name":"Abhijit Muhūrta","start":"11:28","end":"12:14","startHours":11.474424377177924,"endHours":12.238258163235416,"quality":"auspicious"},"brahmaMuhurta":{"name":"Brahma Muhūrta","start":"04:36","end":"05:22","startHours":4.599920302660495,"endHours":5.363754088717988,"quality":"auspicious"},"pratahSandhya":{"name":"Prātaḥ Sandhyā","start":"05:10","end":"06:08","startHours":5.1727956422036145,"endHours":6.12758787477548,"quality":"auspicious"},"vijayaMuhurta":{"name":"Vijaya Muhūrta","start":"13:46","end":"14:32","startHours":13.7659257353504,"endHours":14.529759521407893,"quality":"auspicious"},"godhuliMuhurta":{"name":"Godhūli Muhūrta","start":"17:23","end":"17:47","startHours":17.38509466563786,"endHours":17.78509466563786,"quality":"auspicious"},"sayahnaSandhya":{"name":"Sāyāhna Sandhyā","start":"17:35","end":"18:04","startHours":17.58509466563786,"endHours":18.062490781923792,"quality":"auspicious"},"amritKala":{"name":"Amṛta Kāla","start":"17:20","end":"19:05","startHours":17.33509466563786,"endHours":19.08509466563786,"quality":"auspicious"},"nishitaMuhurta":{"name":"Niśīta Muhūrta","start":"23:28","end":"00:14","startHours":23.474424377177925,"endHours":24.238258163235415,"quality":"auspicious"},"dayChoghadiyas":[{"name":"Chala","start":"06:08","end":"07:34","startHours":6.12758787477548,"endHours":7.5597762236332775,"quality":"neutral"},{"name":"Labha","start":"07:34","end":"09:00","startHours":7.5597762236332775,"endHours":8.991964572491074,"quality":"auspicious"},{"name":"Amṛta","start":"09:00","end":"10:25","startHours":8.991964572491074,"endHours":10.424152921348874,"quality":"auspicious"},{"name":"Kāla","start":"10:25","end":"11:51","startHours":10.424152921348874,"endHours":11.85634127020667,"quality":"inauspicious"},{"name":"Śubha","start":"11:51","end":"13:17","startHours":11.85634127020667,"endHours":13.28852961906447,"quality":"auspicious"},{"name":"Roga","start":"13:17","end":"14:43","startHours":13.28852961906447,"endHours":14.720717967922266,"quality":"inauspicious"},{"name":"Udveg","start":"14:43","end":"16:09","startHours":14.720717967922266,"endHours":16.152906316780065,"quality":"inauspicious"},{"name":"Chala","start":"16:09","end":"17:35","startHours":16.152906316780065,"endHours":17.58509466563786,"quality":"neutral"}],"nightChoghadiyas":[{"name":"Roga","start":"17:35","end":"19:09","startHours":17.58509466563786,"endHours":19.15290631678006,"quality":"inauspicious"},{"name":"Udveg","start":"19:09","end":"20:43","startHours":19.15290631678006,"endHours":20.720717967922266,"quality":"inauspicious"},{"name":"Chala","start":"20:43","end":"22:17","startHours":20.720717967922266,"endHours":22.28852961906447,"quality":"neutral"},{"name":"Labha","start":"22:17","end":"23:51","startHours":22.28852961906447,"endHours":23.85634127020667,"quality":"auspicious"},{"name":"Amṛta","start":"23:51","end":"01:25","startHours":23.85634127020667,"endHours":25.42415292134887,"quality":"auspicious"},{"name":"Kāla","start":"01:25","end":"03:00","startHours":25.42415292134887,"endHours":26.991964572491074,"quality":"inauspicious"},{"name":"Śubha","start":"03:00","end":"04:34","startHours":26.991964572491074,"endHours":28.55977622363328,"quality":"auspicious"},{"name":"Roga","start":"04:34","end":"06:08","startHours":28.55977622363328,"endHours":30.12758787477548,"quality":"inauspicious"}],"horas":[{"name":"Hora 1","start":"06:08","end":"07:08","startHours":6.12758787477548,"endHours":7.12758787477548,"planetary_lord":"Venus"},{"name":"Hora 2","start":"07:08","end":"08:08","startHours":7.12758787477548,"endHours":8.127587874775479,"planetary_lord":"Sun"},{"name":"Hora 3","start":"08:08","end":"09:08","startHours":8.127587874775479,"endHours":9.127587874775479,"planetary_lord":"Mars"},{"name":"Hora 4","start":"09:08","end":"10:08","startHours":9.127587874775479,"endHours":10.127587874775479,"planetary_lord":"Jupiter"},{"name":"Hora 5","start":"10:08","end":"11:08","startHours":10.127587874775479,"endHours":11.127587874775479,"planetary_lord":"Saturn"},{"name":"Hora 6","start":"11:08","end":"12:08","startHours":11.127587874775479,"endHours":12.127587874775479,"planetary_lord":"Moon"},{"name":"Hora 7","start":"12:08","end":"13:08","startHours":12.127587874775479,"endHours":13.127587874775479,"planetary_lord":"Mercury"},{"name":"Hora 8","start":"13:08","end":"14:08","startHours":13.127587874775479,"endHours":14.127587874775479,"planetary_lord":"Venus"},{"name":"Hora 9","start":"14:08","end":"15:08","startHours":14.127587874775479,"endHours":15.127587874775479,"planetary_lord":"Sun"},{"name":"Hora 10","start":"15:08","end":"16:08","startHours":15.127587874775479,"endHours":16.12758787477548,"planetary_lord":"Mars"},{"name":"Hora 11","start":"16:08","end":"17:08","startHours":16.12758787477548,"endHours":17.12758787477548,"planetary_lord":"Jupiter"},{"name":"Hora 12","start":"17:08","end":"18:08","startHours":17.12758787477548,"endHours":18.12758787477548,"planetary_lord":"Saturn"},{"name":"Hora 13","start":"18:08","end":"19:08","startHours":18.12758787477548,"endHours":19.12758787477548,"planetary_lord":"Moon"},{"name":"Hora 14","start":"19:08","end":"20:08","startHours":19.12758787477548,"endHours":20.12758787477548,"planetary_lord":"Mercury"},{"name":"Hora 15","start":"20:08","end":"21:08","startHours":20.12758787477548,"endHours":21.12758787477548,"planetary_lord":"Venus"},{"name":"Hora 16","start":"21:08","end":"22:08","startHours":21.12758787477548,"endHours":22.12758787477548,"planetary_lord":"Sun"},{"name":"Hora 17","start":"22:08","end":"23:08","startHours":22.12758787477548,"endHours":23.12758787477548,"planetary_lord":"Mars"},{"name":"Hora 18","start":"23:08","end":"00:08","startHours":23.12758787477548,"endHours":24.12758787477548,"planetary_lord":"Jupiter"},{"name":"Hora 19","start":"00:08","end":"01:08","startHours":24.12758787477548,"endHours":25.12758787477548,"planetary_lord":"Saturn"},{"name":"Hora 20","start":"01:08","end":"02:08","startHours":25.12758787477548,"endHours":26.12758787477548,"planetary_lord":"Moon"},{"name":"Hora 21","start":"02:08","end":"03:08","startHours":26.12758787477548,"endHours":27.12758787477548,"planetary_lord":"Mercury"},{"name":"Hora 22","start":"03:08","end":"04:08","startHours":27.12758787477548,"endHours":28.12758787477548,"planetary_lord":"Venus"},{"name":"Hora 23","start":"04:08","end":"05:08","startHours":28.12758787477548,"endHours":29.12758787477548,"planetary_lord":"Sun"},{"name":"Hora 24","start":"05:08","end":"06:08","startHours":29.12758787477548,"endHours":30.12758787477548,"planetary_lord":"Mars"}],"taraBala":{"favorable_nakshatras":["Aśvinī","Bharaṇī","Kṛttikā","Rohiṇī","Mṛgaśirā","Maghā","Pūrva Phalgunī","Uttara Phalgunī","Hasta","Citrā","Mūla","Pūrva Āṣāḍhā","Uttara Āṣāḍhā","Śravaṇa","Dhaniṣṭhā"],"unfavorable_nakshatras":["Ārdrā","Punarvasu","Puṣya","Aśleṣā","Svātī","Viśākhā","Anurādhā","Jyeṣṭhā","Śatabhiṣaj","Pūrva Bhādrapadā","Uttara Bhādrapadā","Revatī"],"nature":"Janma-tara if same nakshatra; favorable for 15 nakshatras"},"chandraBala":{"favorable_rashis":["Vṛṣabha","Mithuna","Siṃha","Tulā","Makara","Kumbha"],"unfavorable_rashis":["Meṣa","Karka","Kanyā","Vṛścika","Dhanu","Mīna"]},"dishaShool":"West (Paścim)","chandraVasa":"West","rahuVasa":"South-East","anandadiYoga":{"name":"Ānanda","quality":"Auspicious"},"tropicalRitu":"Śiśira (Winter)","vedicRitu":"Śiśira (Winter)","tropicalAyana":"Uttarāyaṇa","vedicAyana":"Uttarāyaṇa","meta":{"method":"BOB-History Sūrya-Siddhānta + Vidhyamitra Tier-2 spherical localization","declination":-11.812772072190047,"eotMinutes":-14.434876212400278,"ayanamsa":24.0085}},"calendars":{"vikram_samvat":2068,"vikram_samvatsara":"Krodhi","saka_samvat":1933,"saka_samvatsara":"Khara","bengali_samvat":1418,"malayalam_era":1187,"nanakshahi_year":542,"lunar_month":"Māgha","lunar_month_paksha_full":"Māgha Śukla Pakṣa","lunar_month_system":"purnimanta","lunar_month_purnimanta":"Māgha","lunar_month_amanta":"Māgha","lunar_month_is_adhika":false,"lunar_month_purnimanta_is_adhika":false,"lunar_month_amanta_is_adhika":false,"solar_month":"Kumbha (Māsi)","ritu":"Śiśira (Winter)","display_summary":"Māgha Śukla Pūrṇimā · Vikram 2068 Krodhi · Śaka 1933 Khara"},"festivals":[{"id":"magha-purnima","name":"Māghī Pūrṇimā","name_sanskrit":"माघी पूर्णिमा","tradition":"Pan-Hindu","significance":"Sacred snāna at Prayāga; Māgha-snāna culmination.","vrata":true,"detection":{"tithi_number":15,"tithi_paksha":"Śukla","lunar_month":"Māgha"},"precedence":2}],"todays_walk":{"walk":{"id":"shukra-walk","name":"Śukra Walk","name_sanskrit":"शुक्र यात्रा","type":"graha","description":"Beauty + creativity in dharma + BG 10.36.","step_count":5,"url":"/walk/shukra-walk"},"reason":"Śukravāra (Friday) — its presiding graha's walk."},"cosmic_resonances":[{"historical_date":"-3137-10-04","event":"Mahābhārata Day 1 (Bhagavad Gītā delivered)","chart_id":"krishna","shared_marker":"same Śukla Pūrṇimā","url":"/day/-3137-10-04","relevance":0.5},{"historical_date":"-0562-04-11","event":"Bhagavān Buddha's birth at Lumbinī","chart_id":"buddha","shared_marker":"same Śukla Pūrṇimā","url":"/day/-0562-04-11","relevance":0.5}]},"validity":{"eternal":false,"location_specific":"howrah"},"liturgical":{"opening":"जय श्री कृष्ण","closing":"ॐ तत् सत्","attribution":"Computed by Vidhyamitra Sūrya-Siddhānta substrate + Vidhyamitra Tier-2 layer"},"seo":{"title":"Pañchāṅga February 18, 2011 CE · Howrah, West Bengal · Vidhyamitra","description":"February 18, 2011 CE for Howrah, West Bengal: Śukla Pūrṇimā, sūryodaya 06:08, sūryāsta 17:35.","schema_org_type":"Article","canonical":"https://vidhyamitra.com/city/howrah/2011-02-18","hreflang_alternates":{"en":"https://vidhyamitra.com/city/howrah/2011-02-18","sa":"https://sa.vidhyamitra.com/city/howrah/2011-02-18","hi":"https://hi.vidhyamitra.com/city/howrah/2011-02-18","x-default":"https://vidhyamitra.com/city/howrah/2011-02-18"}},"provenance":[{"pillar":"BOB-History","pillar_version":"2.12.0","method":"Sūrya-Siddhānta first-principles + Bhāskara II + Kerala-school (Mādhava-Nīlakaṇṭha) corrections","retrieved_at":"2026-05-31T22:36:03.762Z","verification":{"type":"multi-marker","confidence":"canonical"}},{"pillar":"Vidhyamitra-Tier2","pillar_version":"0.1.0","method":"Spherical astronomy + Lahiri ayanamsa + standard solar declination + EoT correction","retrieved_at":"2026-05-31T22:36:03.762Z","verification":{"type":"community-validated","markers":["modern-reference checked timing on Narasiṁha Jayantī 2026"],"confidence":"verified"}}],"meta":{"generated_at":"2026-05-31T22:36:03.762Z","pillar_versions":{"Sūrya-Siddhānta":"Pūrṇa","Vidhyamitra-Tier2":"Pūrṇa"}}}